![](/img/trans.png)
[英]Why is printstacktrace() of exception method does not print to console when ever called?
[英]method called does not print
這是我的代碼:
public class Exercixe09_04 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("Enter a string: ");
String s1 = input.next();
System.out.println("Enter a character: ");
String s2 = input.next();
char c = s2.charAt(0);
int num = count(s1, c);
System.out.print(num);
}
public static int count(String str, char a)
{
int count = 0;
for(int i =0; i < str.length(); i++)
if(str.charAt(i) == 'a'){
count++;
}
return count;
}
}
當我編譯並運行它時,什么都不會打印。 有人可以幫我找出問題所在嗎?
import java.util.Scanner;
public class Exercixe09_04 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("Enter a string: ");
String s1 = input.next();
System.out.print("Enter a character: ");
String s2 = input.next();
char c = s2.charAt(0);
int num = count(s1, c);
System.out.println(num);
}
public static int count(String str, char a) {
int count = 0;
for (int i = 0; i < str.length(); i++)
if (str.charAt(i) == a) {
count++;
}
return count;
}
}
樣品運行:
falsetru@jmlee12:/tmp$ java Exercixe09_04
Enter a string: Hello
Enter a character: l
2
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.